I have a Macbook Pro 2.2ghz i7 with 16GB of ram connected to my Dell P2715Q via displayport. For some reason whenever I use the monitor, the computer slows down a LOT. Animations on browsers are choppy, scrolling is choppy and the fan is constantly on in activity monitor.
If I disconnect the monitor and use just the laptop display, everything works as expected.
Is the laptop not powerful enough or have I missed a setting somewhere?
Thanks!